Because our body temperatures generally stay the same in all conditions.
Because we give birth to live young.
Because we have skeletons made of bone, not cartilage.
Because we can't breathe under water.
Less evolved than
Exactly the same as
On the whole, they're more intelligent than other vertebrates.
On thewhole, they're less intelligent than bony fish.
On the whole, they're more intelligent than bony fish.
On the whole, they're less intelligent than invertebrates.
They're the most important part of a fish'es body.
They're used to reduce the weight of flying and swimming objects.
They guide the movement of objects throught the water.
They prevent both fish and boats from sinking.
It couldn't move forward throught the water.
It couldn't rigulate its depth in the water.
It couldn't breathe under water.
It couldn't release waste from its body.
There are more fish species than the mammal species.
The mouths of lampreys are strange looking.
Fish can be found in both freshwater and saltwater habitats.
Many species of fish eat other fish to survive.
Regulate its depth in the water
Chew its food